Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13091/1717
Title: Uniform deposition of large-area graphene films on copper using low-pressure chemical vapor deposition technique
Authors: Gürsoy, Mehmet
Çıtak, Emre
Karaman, Mustafa
Keywords: Graphene
Lpcvd
Uniformity
Large-Area
Single-Layer Graphene
Growth
Transparent
Exfoliation
Publisher: Springer Japan Kk
Abstract: Large-area graphene of the order of centimeters was deposited on copper substrates by low-pressure chemical vapor deposition (LPCVD) using hexane as the carbon source. The effect of temperature and the carrier gas flowrates on the quality and uniformity of the as-deposited graphene was investigated using the Raman analysis. The film deposited at 870 degrees C with a total carrier gas flowrate of 50 sccm is predominantly single-layer with very low defects according to the Raman spectra. The 2D/G peak intensity ratios obtained from the Raman spectra of samples from three different locations of graphene deposited on a whole copper catalyst was used to calculate the large-area uniformity. Based on the results, a very high uniformity of 89.6% was calculated for the graphene deposited at 870 degrees C. The uniformity was observed to decrease with increasing temperature. Similar to the thickness uniformity, the electrical conductivity values obtained as a result of I-V measurements and water contact angle measurements were found to be close to each other for the graphene deposited under the same deposition conditions.
URI: https://doi.org/10.1007/s42823-021-00309-3
https://hdl.handle.net/20.500.13091/1717
ISSN: 1976-4251
2233-4998
Appears in Collections:Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections

Files in This Item:
File SizeFormat 
s42823-021-00309-3.pdf
  Until 2030-01-01
2.52 MBAdobe PDFView/Open    Request a copy
Show full item record



CORE Recommender

WEB OF SCIENCETM
Citations

4
checked on May 25, 2024

Page view(s)

110
checked on May 27, 2024

Download(s)

6
checked on May 27, 2024

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.